Using rapid- scan EPR to improve the detection limit of quantitative EPR by more than one order of magnitude
X-band rapid-scan EPR was implemented on a commercially available Bruker ELEXSYS E580 spectrometer. Room temperature rapid-scan and continuous-wave EPR spectra were recorded for hydrogenated amorphous silicon powder samples. By comparing the resulting signal intensities the feasibility of performing quantitative rapid-scan EPR is demonstrated. For different hydrogenated amorphous silicon samples, rapid-scan EPR results in signal-to-noise improvements by factors between 10 and 50. Rapid-scan EPR is thus capable of improving the detection limit of quantitative EPR by at least one order of magnitude. In addition, we provide a recipe for setting up and calibrating a conventional pulsed and continuous-wave EPR spectrometer for rapid-scan EPR.
Digital Commons Citation
Möser, J; Lips, K; Tseytlin, M; and Eaton, G R., "Using rapid- scan EPR to improve the detection limit of quantitative EPR by more than one order of magnitude" (2017). Clinical and Translational Science Institute. 656.